Lighting controller

Abstract

The utility model relates to the technical field of lighting equipment, and discloses a lighting controller, which comprises an outer shell, and a rectifying circuit, a dimming circuit and a controller which are arranged in the outer shell. The outer shell is provided with an input terminal used for being connected with an external power supply, an output terminal used for being connected with a load and at least one external switch terminal used for being connected with an external switch, the input end of the rectifying circuit is electrically connected with the input terminal, and the output end of the rectifying circuit is electrically connected with the input end of the dimming circuit. The output end of the dimming circuit is electrically connected with the load, the dimming circuit is controlled by the controller, the outer shell is provided with at least two internal switches, and the external switch terminal and the internal switches are electrically connected with the controller. According to the lighting controller, multi-point control over the lamp set can be achieved without complex wiring of a plurality of single-pole double-throw switches, installation is convenient and fast, and the arrangement cost of a lighting control circuit can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting equipment technical field, concretely relates to a lighting controller. BACKGROUND

[0002] In some use situations, two or more switches are needed to control the switch of the same lamp group, and the existing lighting controller usually needs to be matched with two or more single-pole double-throw switches to realize the double control or multi-control scheme. Figure 1 As shown in the figure, in the double control or multi-control scheme, the connection relationship between the multiple single-pole double-throw switches is relatively complex for the general users and is not easy to understand, resulting in difficult installation. Therefore, it is necessary to design a lighting controller which can realize the double control or even multi-control scheme for the general public. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a lighting controller which can be connected to an external controller through an external switch terminal and realize double control or even multi-control scheme with an internal switch, so as to facilitate the installation and realization of multi-point control of the lamp group by the general users without circuit connection experience and save the cost of lamp group wiring.

[0004] To solve the above problems, the utility model adopts the following technical scheme: a lighting controller, comprising a shell body and a rectifier circuit, a dimming circuit and a controller arranged in the shell body, an input terminal for connecting an external power supply, an output terminal for connecting a load and at least one external switch terminal for connecting an external switch are arranged on the shell body, the input end of the rectifier circuit is electrically connected with the input terminal, the output end of the rectifier circuit is electrically connected with the input end of the dimming circuit, the output end of the dimming circuit is electrically connected with the load, the dimming circuit is controlled by the controller, at least two internal switches are arranged on the shell body, and the external switch terminal and the internal switch are electrically connected with the controller.

[0005] Compared with the prior art, the utility model has the beneficial effects that: the lighting controller has internal switches and external switch terminals which can be connected with external switches, by connecting a single-pole single-throw switch to the external switch terminal, the controller can detect the state of the external switch, so as to control the lamp group according to the state of the external switch and the internal switch, thereby simply realizing multi-point control of the same lamp group. With the lighting controller, the user can install and realize multi-point control of the lamp group without circuit wiring experience, thereby reducing the installation difficulty. With the lighting controller, a single-pole double-throw switch can be used to realize double-point control of the lamp group, which can reduce the installation cost of the lighting control circuit compared with the traditional scheme which requires two single-pole double-throw switches to realize double-point control.

[0006] The input terminal is connected with the input terminal of the rectifier circuit through the common mode inductor L4 and L1 connected in sequence.

[0007] The L terminal of the input terminal is connected with the common mode inductor L4 in series with the fuse F1.

[0008] The input terminal of the common mode inductor L1 is connected with the capacitor C1 in parallel.

[0009] The external switch terminal is connected with the controller through the optocoupler IC10, the positive pole of the input terminal of the optocoupler IC10 is connected with the external switch terminal, and the negative pole of the input terminal of the optocoupler IC10 is connected with the output terminal of the coil of the common mode inductor L1 connected with the N terminal of the input terminal.

[0010] The input terminal of the optocoupler IC10 is connected with the resistor R91 in parallel.

[0011] The external switch terminal and the positive pole of the input terminal of the IC10 are connected in series with the fuse F2 and the resistor R1.

[0012] The utility model will be further explained in detail in combination with the drawings and specific embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the double control wiring schematic diagram of prior art's lighting controller;

[0014] Figure 2 It is the double control wiring schematic diagram of the lighting controller of the embodiment of the utility model;

[0015] Figure 3 It is the circuit schematic diagram of the input terminal and the external switch terminal of the embodiment of the utility model;

[0016] Figure 4 It is the circuit schematic diagram of the optocoupler of the embodiment of the utility model. DETAILED DESCRIPTION

[0017] The embodiment of the utility model will be described in detail below, referring to Figure 2The embodiment of the utility model provides a kind of lighting controller, including shell body and the rectifier circuit, dimming circuit and controller being arranged in shell body.The shell body is which is provided with the input terminal P1 and P2 for connecting external power supply, the output terminal P4 and P3 for connecting load, and at least one external switch terminal P5 for connecting external switch.The input end of rectifier circuit is electrically connected with input terminal electrically P1 and P2, the output end of rectifier circuit is electrically connected with the input end of dimming circuit, the output end of dimming circuit is electrically connected with load, and dimming circuit is controlled by controller.At least two internal switches are provided on shell body, and external switch terminal P5 and internal switch are electrically connected with controller.

[0018] Adopt this lighting controller, controller can detect the state of external switch by external switch terminal P5, so that the state of external switch and internal switch can be controlled to the lamp group, to simply realize the multi-point control of same lamp group.Referring to Figure 2 , adopt this lighting controller to arrange lighting control circuit to realize the double-point control of same lamp group, only need to connect the two ends of one single-pole single-throw switch in series between the L terminal P2 of input terminal connecting fire line L, installation is convenient and simple, need not carry out complex wiring as Figure 1 The controller controls the lamp group to open or close according to the state of external switch and internal switch according to the truth table set in advance, to realize the double-point control of lamp group.Adopt this lighting controller to constitute lighting control circuit, only need to adopt one single-pole single-throw switch to realize the double-point control of lamp group, relative to traditional double-point or multi-point lighting control circuit, need to adopt two or more single-pole double-throw switches, can reduce the layout cost of lighting control circuit.Adopt this lighting controller to constitute lighting control circuit, the state of external switch will not affect the electric energy input into lighting controller, will not affect the brightness adjustment and other control functions of lighting controller.Adopt this lighting controller to form the double-point control or multi-point control of lamp group, can also reduce the number of wiring, to reduce the power loss on electric wire, reduce the risk of electric wire insulation stress in electric wire construction process, and reduce the heat accumulation in electric wire conduit, improve the safety of installation in high temperature area.

[0019] Referring to Figure 3In the embodiment, in order to reduce common-mode interference input to the lighting controller, the input terminals P1 and P2 are electrically connected to the input of the rectifier circuit through common-mode inductors L4 and L1, the output of the common-mode inductor L1 is connected to four internal terminals A19, A15, A16 and A20, the input of the common-mode inductor L1 is connected to four terminals E19, E15, E16 and E20, and the four internal terminals A19, A15, A16 and A20 are electrically connected to E19, E15, E16 and E20 respectively. The output of the common-mode inductor L1 is electrically connected to the input of the rectifier circuit through four terminals E21, E17, E18 and E22. The input of the common-mode inductor L1 is connected in parallel with a capacitor C1. In order to protect the rectifier circuit and the dimming circuit from being damaged by an overload voltage, a fuse F1 is connected in series between the L terminal P2 and the common-mode inductor L4.

[0020] Referring to Figure 4 In the embodiment, in order to isolate high voltage and low voltage, the external switch terminal P5 is electrically connected to the controller through an optocoupler IC10, the positive electrode of the input of the optocoupler IC10 is electrically connected to the external switch terminal P5 through the jumper connectors J8 and J9, and a resistor R1 and a fuse F2 are connected in series between the external switch terminal P5 and the input of the optocoupler IC10 to protect the optocoupler IC10 from being damaged by inrush current or overload current. The negative electrode of the input of the optocoupler IC10 is electrically connected to the N terminal P1 of the input terminal through the jumper connectors J8, J9 and the common-mode inductors L1 and L4, the output of the optocoupler IC10 is connected to the controller and the signal ground respectively, and the end of the output of the optocoupler IC10 connected to the controller is also connected to the feedback signal of the rectifier circuit. When the external switch is opened or not connected, the optocoupler IC10 is not conductive, and the feedback signal will not be pulled low to ground, so that the input controller is high; when the external switch is closed, the optocoupler IC10 is conductive, and the feedback signal is pulled low, so that the input controller is low, so that the lighting controller can also be used alone to realize single-point control of the lamp group.

[0021] It can be understood that the rectifier circuit can adopt a bridge rectifier circuit or an active rectifier circuit, and the dimming circuit can adopt a Buck-Boost step-up and step-down circuit or other voltage regulation circuit, and their specific structures are well known in the art, which will not be described here. The MOS tube and other switching devices in the dimming circuit are controlled by the PWM control signal sent by the controller, and the controller can be informed whether to adjust the brightness of the lamp group or control the switch of the lamp group by the length of time of pressing the internal switches SW3 and SW4, for example, if the time of pressing SW3 and SW4 is between 0.5s and 1s, it is considered to control the switch of the lamp group; if the time of pressing SW3 is greater than 2s, the brightness of the lamp group is gradually increased; if the time of pressing SW4 is greater than 2s, the brightness of the lamp group is gradually decreased.

[0022] It can be understood that in some embodiments, the lighting controller can include a plurality of external switch terminals, which are respectively electrically connected with the controller to realize multi-point control of the lamp group.

[0023] It should be noted that in the description of the utility model, if there are some directions, such as upper, lower, front, rear, left, right and the like, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implicit that the device or element indicated must have a particular orientation, be constructed or operated in a particular orientation, and cannot be understood as a limitation on the utility model.

[0024] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two and more than two, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number.If there is a description of first or second and the like, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0026] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model belong to the scope of protection required by the utility model.

Claims

1. A lighting controller, characterized in that, The device includes a housing and a rectifier circuit, a dimming circuit, and a controller disposed within the housing. The housing has an input terminal for connecting to an external power source, an output terminal for connecting to a load, and at least one external switch terminal for connecting to an external switch. The input terminal of the rectifier circuit is electrically connected to the input terminal, the output terminal of the rectifier circuit is electrically connected to the input terminal of the dimming circuit, and the output terminal of the dimming circuit is electrically connected to the load. The dimming circuit is controlled by the controller. The housing has at least two internal switches, and both the external switch terminal and the internal switches are electrically connected to the controller.

2. The lighting controller according to claim 1, characterized in that, The input terminal is electrically connected to the input terminal of the rectifier circuit through a series of common-mode inductors L4 and L1.

3. The lighting controller according to claim 2, characterized in that, A fuse F1 is connected in series between the L terminal of the input terminal and the common mode inductor L4.

4. The lighting controller according to claim 2, characterized in that, A capacitor C1 is connected in parallel to the input terminal of the common-mode inductor L1.

5. The lighting controller according to claim 2, characterized in that, The external switch terminal is electrically connected to the controller via optocoupler IC10. The positive terminal of the input terminal of optocoupler IC10 is electrically connected to the external switch terminal, and the negative terminal of the input terminal of optocoupler IC10 is electrically connected to the output terminal of the coil of common mode inductor L1 that is connected to the N terminal of the input terminal.

6. The lighting controller according to claim 5, characterized in that, A resistor R91 is connected in parallel to the input terminal of the optocoupler IC10.

7. The lighting controller according to claim 5, characterized in that, A fuse F2 and a resistor R1 are connected in series between the external switch terminal and the positive terminal of the input terminal of IC10.

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